Doppler Vortex 50cc Moped Cylinder Kits

The long awaited Doppler Vortex kits have finally arrived however only for Minarelli AM6 and Derbi D50B0 engines at the moment. It’s clear to see what all the hype was about once you have one in your hand. First of all the water jacket is huge covering more than the entire piston stroke which allows for a pretty aggressive port layout. The general quality of the cylinder head and barrel is second to none and a Vertex piston is used to complete it. With extreme cooling properties Doppler say this kit is designed for road use with low service intervals and we believe them!

Minarelli AM6 – AD/480587 - £174.00

Derbi D50B0 – AD/480588 - £174.00